| A | B |
|---|
| Biceps Brachii | shoulder & elbow flexion & supination |
| Brachialis | elbow flexion |
| Brachioradialis | elbow flexion; pronation & supination to neutral |
| Triceps Brachii | shoulder & elbow extension |
| Anconeus | elbow extension |
| supinator | supination |
| Pronator Quadratus | pronation |
| pronator teres | pronation and elbow flexion |
| extensor carpi ulnaris | wrist extension & ulnar deviation |
| extensor carpi radialis longus | wrist extension & radial deviation |
| extensor carpi radialis brevis | wrist extension |
| flexor carpi ulnaris | wrist flexion & ulnar deviation |
| flexor carpi radialis | wrist flexion & radial deviation |
| extensor digitorum | extend wrist & MCP, PIP, & DIP joints |
| extensor indicis | extend MCP, PIP & DIP joint of 2nd finger |
| extensor digiti minimi | extend MCP, PIP, & DIP joint of 5th finger |
| flexor digitorum profundus | flex MCP, PIP, & DIP joints; wrist flexion |
| flexor digitorum superficialis | flex MCP & PIP joints; wrist flexion |
| flexor pollicis longus | flex CMC, MCP & IP joints |
| flexor pollicis brevis | flex CMC & MCP joints |
| abductor pollicis longus | abduct and extend CMC joint |
| abductor pollicis brevis | abduct CMC joint |
| abductor digiti minimi | abduct MCP joint of 5th finger |
| flexor digiti minimi | flex CMC & MCP of 5th finger |
| adductor pollicis | adduct CMC joint of thumb |
| opponens pollicis | oppose thumb |
| opponens digiti minimi | oppose 5th finger |
| lumbricals | flex MCP and extend PIP & DIP joints |
| dorsal interossei | abduct fingers 2-5 |
| palmar interossei | adduct fingers 2-5 |
| extensor pollicis longus | extend CMC, MCP & IP joints |
| extensor pollicis brevis | extend CMC & MCP joints |
